Preventing G-induced loss of consciousness: 20 years of operational experience.
D000060:Accidents, Aviation; D000401:Aircraft; D001359:Aviation / Q000266:history*; D016208:Databases, Factual; D004867:Equipment Design; D019983:Guideline Adherence; D049673:History, 20th Century; D006706:Homeostasis; D006801:Humans; D018471:Hypergravity / Q000009:adverse effects*; D008889:Military Personnel; D011175:Positive-Pressure Respiration; D012307:Risk Factors; D012449:Safety; D014474:Unconsciousness / Q000209:etiology / Q000517:prevention & control*